The sea west of Spitsbergen; the oceanographic observations of the Isachsen Spitsbergen Expedition in 1910 . ns Stats. 306, 308, 314, 330 and 331 (of August 4th, 1878), 342and 345 (of August 6th and 7th, 1878) are between, as well as north andsouth of Isachsens Sections I and II (see Fig. 211. The mean temperatureof all these stations may therefore be compared with that of the two mean temperature (100—400 metres) of Mohns stations ° C. The mean temperature of Isachsens Stats. 2, 3, 4, 5, 7, 8, 9, 10,and 11, is ° C. As Stats. 5 and 7 are farther west than any ofMohns st
The sea west of Spitsbergen; the oceanographic observations of the Isachsen Spitsbergen Expedition in 1910 . ns Stats. 306, 308, 314, 330 and 331 (of August 4th, 1878), 342and 345 (of August 6th and 7th, 1878) are between, as well as north andsouth of Isachsens Sections I and II (see Fig. 211. The mean temperatureof all these stations may therefore be compared with that of the two mean temperature (100—400 metres) of Mohns stations ° C. The mean temperature of Isachsens Stats. 2, 3, 4, 5, 7, 8, 9, 10,and 11, is ° C. As Stats. 5 and 7 are farther west than any ofMohns stations, they might be left out; but this will make no appreciabledifference in the mean temperature. As the observations at Isachsens stations were taken about 34 daysearlier in the season than those at Mohns stations, their mean temperaturemight be increased to i°C. in order to be comparable with the meantemperature of the latter. The water of the current should accordinglyhave been about C. colder in 1878 than in 1910. This agrees Skrifter. I. Kl. 1912. No. 12. 3. 1000 34 BJ0RN HELLAND-HANSEN AND FRIDTJOF NANSEN. Kl. well with thevalues(° ° C.)found abovefor this differ-ence between the two mean temperatureof Mohns Stats. 308, 330and 331, and 342 (of July21st, and August 4th ami6th, 1878) is C. The mean temperature of Makaroff sStats. 33 and 16 (of September 4thand August, 5th, 1899) >s C. The mean temperature of Isachsens Stats. 3, 4, 10, and 11 (of June 25th and 27th, 1910) is C. The mean latitudes of these three different groups of stations are approximately the same, but owing to the difference in season, the mean temperatures would have to be increased to C. for Mohns stations and to C. for Isachsens stations, in order to be comparable with the temperature C. of MakarofFs stations. According to these values, the current should have been, in1910, C. warmer th
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